Reddit mentions of Message of the Joseph Smith Papyri: An Egyptian Endowment (Works)

The idea that the script is somehow an ancient temple ritual was proposed first by Nibley I believe. Here's the long and short of it:

1. Ritner (university of Chicago) has translated the scrolls. There is a book you can by for $20 or so which tells you exactly what is on the scrolls. It's worth buying if you have any question. Parts of his translation were plagiarized by the BYU folks trying to translate the scrolls and it appears that it upset him a bit, but I digress.
   
2. Timing: Abraham would have lived about 2200 BC. The scrolls date to about 150 BC. So Abraham never got near these scrolls. But what is more, the scrolls can and have been accurately translated. There's nothing on them that has anything to do with Abraham, which the church admits in their gospel topics essay on Abraham.
   
3. What is perhaps more problematic is that most scholars believe that Abraham never lived. He is a mythical historical figure.
   >By the beginning of the 21st century, archaeologists had given up hope of recovering any context that would make Abraham, Isaac or Jacob credible historical figures.
   source
   
   
4. Moreover, the whole idea that ancient biblical temple rights are in any meaningful way connected to modern LDS temple ceremonies is a stretch. The LDS temple rights mix the creation story (4-6th century BC?) with masonic ceremonies from the 19th century (the basis of masonry being developed no earlier than the 13th century). There was no temple worship in early Christianity, as even apologists will admit (I have references if needed).